Wild Yam

Buying Wild Yam: The Root Extract with Diosgenin

Wild Yam (Dioscorea villosa), also known as Mexican yam, is a climbing plant whose root has traditionally been used in herbal medicine. The characteristic plant compound in wild yam is diosgenin, a saponin to which extracts are often standardized. In our assortment, you will find wild yam as a standardized root extract and as a full-spectrum root powder, from renowned brands and in various dosages.

What is wild yam?

Wild yam is the common name for plants from the genus Dioscorea, of which Dioscorea villosa is the best known for supplements. It is a perennial climbing plant with a tuberous rhizome that is traditionally dried and processed. The main plant compound is diosgenin, a steroidal saponin characteristic of the root and used as a measure of an extract's strength. For supplements, the root is processed into powder or a standardized extract. The label indicates how much wild yam a product provides per serving and to what percentage of diosgenin it may be standardized.

Wild yam and diosgenin

Diosgenin is the plant compound to which wild yam owes its fame. It is a saponin naturally found in the root, and many wild yam extracts are standardized to it, for example, to 20% diosgenin. A higher percentage means a more concentrated extract. It is a misconception that the body converts diosgenin from a supplement into hormones itself; that conversion is an industrial laboratory process and does not happen in the body. We therefore describe diosgenin here as the characteristic plant compound, without making any claims about its effects; no official health claims have been approved for wild yam.

Where does wild yam come from?

Wild yam is native to North and Central America, including Mexico, which explains the name "Mexican yam." The plant grows in forests and in moist, sheltered places. For the production of supplements, the rhizome is harvested, dried, and processed into powder or a standardized extract. The origin and degree of standardization may vary by brand and are often stated on the product page. Wild yam is not found in common foods and is therefore only available as a supplement.

What forms of wild yam are there?

Wild yam is available as a supplement in two main forms. A standardized root extract is concentrated and provides a fixed percentage of diosgenin per capsule, for example, an extract with 20% diosgenin. Full-spectrum wild yam contains the ground root with all naturally occurring components, without further concentration. Standardized extracts make it easier to compare potency, while full-spectrum powder is closer to the traditional application. The label indicates which form it is and, for an extract, the diosgenin percentage.

How much wild yam per day?

No official recommended daily allowance has been established for wild yam. The dosage varies per product and per form (standardized extract or full-spectrum powder) and is stated on the packaging, expressed in milligrams per capsule. Adhere to the instructions for use of the specific supplement and do not exceed the recommended dosage without advice. When using medication, during pregnancy or breastfeeding, or if in doubt, it is advisable to consult a doctor or therapist beforehand.

Buying wild yam: what to look for?

When choosing a wild yam supplement, a few points are practical to pay attention to. Look at the amount of extract or powder per capsule and, for an extract, the standardized percentage of diosgenin. Determine whether you are looking for a concentrated, standardized extract or a full-spectrum root powder. Also, pay attention to the origin, purity, and price per daily serving. Wild yam falls under herbs and plants; for related products, also check out our collection Herbs & Plants.